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Finding the Fourth Proportional to 792.15, 1,187.61 and 244

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Solution

The fourth proportional to 792.15, 1,187.61 and 244 is: 365.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.15 : 1,187.61 = 244 : x
  2. Step 2: Convert to fraction form
    792.15/1,187.61 = 244/x
  3. Step 3: Cross multiply
    792.15x = 1,187.61 × 244
  4. Step 4: Simplify right side
    792.15x = 289,776.84
  5. Step 5: Solve for x
    x = 289,776.84/792.15
  6. Step 6: Final answer
    x = 365.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.